The developer's swiss army knife for Claude Code.
A desktop control room that turns Claude Code into a multi-agent workshop, locally on your machine.
Run Claude Code like a workshop
JACK reuses your existing CLI subscription and gives you a polished UI. It ships with parallel sessions, multi-agent workspaces, visual diff and centralized permissions. No 3rd-party API lock-ins: your data never leaves your box.
Everything missing from Claude Code.
An uncompromised desktop experience, 100% integrated in your workflow
Parallel sessions
Run as many Claude conversations as you want simultaneously. Group by project without mixing your code scopes.
Permission Inbox
Every dangerous call surfaces in-app: Deny, Allow or "Always Allow". Stop pressing Y endlessly.
Docker Sandbox
One toggle and the whole agent runs inside a container. Your machine stays untouched while reading code effortlessly.
Multi-agent workspaces
Make 2-4 agents cooperate using shared repo files. No proprietary protocol, just files in your local repo.
Diff & Merge side-by-side
Visual CodeMirror-based editor. Compare with HEAD, stage hunk-by-hunk, and resolve conflicts natively.
Real Git inside
Not a wrapper. Worktree management, push with --force-with-lease, and complete hooks respect. Totally auditable.
Stop blocking.
Start shipping.
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Permission Inbox
Stop hitting Y endlessly. Block, approve, or 'Always Allow' commands smartly using a centralized inbox.
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Mobile Companion
Pair your phone via QR code. You'll receive push notifications and handle your Agent permission prompts from the couch.
Start building guided code
Download JACK as a free standalone electron app today and integrate multi-agent processes on macOS.